JPH0721334B2 - Firing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a baking device such as an oven, a fish-baking device, or a meat-baking device.

(Prior Art) In the conventional baking oven, a heat source for burning smoke produced when cooking an object to be cooked and making it smokeless and odorless is provided in a smoke discharge passage connected to the baking oven. It is known from the publication No. 106004.

(Problems to be solved by the invention) However, this is because the heat source for smoke burning is provided at the exhaust outlet of the smoke discharge passage in which smoke flows relatively quickly. The contact time with the heat from the heat source for use is short and it cannot be completely burned out.

In addition, the temperature of the smoke decreases a little while the smoke exits the firing chamber and then flows through the smoke discharge passage, so that the smoke is reheated and burned, so that the heat source for burning the smoke increases in size.

Before burning the smoke, oil contained in the smoke adheres to the smoke discharge passage and becomes dirty.

There are problems such as.

In order to eliminate such a problem, it is considered that the smoke discharge passage should extend in a substantially horizontal direction in which the smoke flows relatively slowly, and that the heat source for the smoke firing should be provided at the inlet of the smoke discharge passage in order to approach the firing chamber. To be However, if a heat source for smoke burning is simply provided at the inlet of the smoke discharge passage, the heat will reach the rear part of the baking cabinet and the temperature of the rear part of the baking cabinet will rise too high. To prevent this, it is conceivable to provide a heat source for smoke burning in the middle of the smoke discharge passage. However, at this time, the problem as described above occurs because it approaches the exhaust outlet of the smoke discharge passage. In order to prevent this, it is conceivable to lengthen the smoke discharge passage, but in this case, there is a problem in that the entire smoke burner becomes large due to the lengthened smoke discharge passage.

The object of the present invention is to obtain a calciner that does not have such problems.

(Means for Solving the Problem) In order to achieve such an object, the present invention provides a smoke exhaust provided with an inlet opening at the upper end of the rear end of the baking oven and extending rearwardly in a substantially horizontal direction and an exhaust outlet at the upper rear. In a case where a passage is provided, a heat source for smoke burning having a heat radiating surface on the lower surface is provided along the upper part of the entrance in the smoke discharging passage that extends substantially horizontally, and below the inlet of the smoke discharging passage. In this case, a projecting piece having substantially the same width as that of the heat source for smoke burning is projected into the baking chamber.

(Operation) In the calciner having the above-described configuration, since the heat source for smoke burning having the heat radiation surface on the lower surface is provided along the upper part of the substantially horizontal smoke discharge passage through which the smoke flows relatively slowly, In the conventional example where smoke is rising, a heat source for smoke burning is provided at the exhaust outlet where the flow of smoke is relatively fast, and the heat from the heat source The contact time with the smoke can be made longer, and the smoke easily flows through the upper part of the smoke discharge passage, that is, the side provided with the heat source for smoke burning, and the smoke having a high temperature immediately after leaving the firing chamber is Since the smoke is burned by the heat from the heat source, the smoke can be burned up sufficiently, and a projecting piece having substantially the same width as the heat source for burning the smoke is projected from below the inlet of the smoke discharge passage into the firing chamber. By doing so, it is possible to prevent the radiant heat from the heat source for smoke burning from reaching the firing chamber by the projecting pieces, and Prevent that the temperature becomes a high temperature as much as possible.

(Example) An example in which the present invention is applied to a gas stove with a calciner will be described.

In the drawings, 1 is a main body of the firing device, 2 is a firing chamber provided in the main body 1 of the firing device, 3 is an inlet 3b opening at the upper end of the rear end of the firing chamber 2 and extends substantially horizontally rearward from the exhaust outlet at the upper rear portion. 3e shows a smoke exhaust passage with 3e.

According to the present invention, the heat source 4 for smoke burning having a heat radiation surface on the lower surface is provided along the upper portion of the inlet portion 3a in the smoke discharge passage 3, and the smoke discharge passage 3 is provided. The projecting piece 5 is projected into the baking chamber 2 from below the inlet 3b of the above. This will be described in more detail with reference to the embodiment shown in FIGS. 1 to 3.
The baking cabinet 2 is a container-shaped lower member 2 supported by a pair of left and right guide rails 1a, 1a provided in the baking machine main body 1 so as to be freely drawn out.
a and the guide rails 1a, consists of a top member 2b which is supported 1a, as an opening 2b-1 as a heat source 4 for the smoke baked mounting the Gabana B ₁ as a heat source 6 for cooking to the upper member 2b 2b-2 facing the gas burner B ₂ of the above, and a surface combustion type gas burner is attached to each of the openings 2b-1 and 2b-2 as the heat sources 4 and 6, respectively, and the front end of the lower member 2a is formed. An opening 7 through which the food to be cooked a is put in and out is provided, and the opening 7 is closed by a door 9 which is integrally provided at a front end of a juice tray 8 which is provided in the baking cabinet 2 so as to be freely drawn out.

Thus, the smoke exhaust passage 3 has a tubular member 3c forming the rear portion of the smoke exhaust passage 3 at the rear end of the upper member 2b, and has a tongue shape forward from the lower front end of the tubular member 3c. The member 3d is projected to form a smoke discharge passage 3 continuing in front of the tubular member 3c between the root portion of the tongue-shaped member 3d and the upper member 2b facing it, and the front end of the tongue-shaped member 3d is formed. The side was the protrusion 5.

Reference numeral 10 is an ignition burner in which a flame is exposed to the gas burner B _{2 serving} as the heat source 4 for smoke burning, and 11 is a gas burner serving as the heat source 4 for burning smoke.
A flame guide gutter for transferring heat from B ₂ to a gas burner B ₁ as a heat source 6 for cooking, 12 is each burner body of the gas burners B ₁ and B ₂ , 13 is a ceramic plate provided on each burner body 12,
Reference numeral 13a indicates a flame port provided on the ceramic plate 13.

FIG. 4 shows another embodiment. In the above-mentioned embodiment, the burner bodies 12, 12 of the gas burner B ₁ and the gas burner B ₂ are provided independently. That is, each independent burner body
The gas burners B ₁ and B ₂ were formed by attaching ceramic plates 13 each having a flame opening 13a to the lower surface openings of 12 and 12, but in the embodiment shown in FIG. A ceramic plate 13 having a flameless opening 13b was attached to a portion facing the upper surface of the flame 5, and a heat source 6 was formed in front of the flameless opening 13b and a heat source 4 was formed in the rear. In this case, the heat source 4 may be located slightly behind the inlet 3b.

In this case, a mixing pipe (not shown) is provided on the gas burner B ₂ side of the burner body 12, and a baffle plate 14 is interposed between the heat sources 4 and 6 so that the length of the flame from the flame port 13a of the heat source 6 can be reduced. By increasing the length of the flame from the heat source 4,
It becomes possible to burn smoke more effectively.

FIG. 5 and FIG. 6 show still another embodiment, in which a surface combustion type gas burner B ₃ for burning the cooked material from the lower surface is faced as a heat source 6 for cooking. In this case, the gas burner B ₂ and the gas burner B ₃ as the heat source 4 for combustion are set to be transferred through a flame guide trough.

In the above embodiment, the surface combustion type gas burner is used as the heat sources 4 and 6, but it is needless to say that this may be a Bunsen type burner or an electric heater or the like.

In addition, as described above, the heat source 4 for smoke burning is connected to the inlet of the smoke discharge passage 3.
By providing in the 3a, there is also an advantage that the temperature when the exhaust gas goes out is lowered to some extent as compared with the case where the heat source is provided at the exit portion of the smoke exhaust passage 3.

Furthermore, as shown in FIGS. 7 and 8, if a wire mesh or other perforated plate 15 that traverses the smoke discharge passage 3 is provided at a position heated by the heat source 4, the through holes 15a of the perforated plate 15 will be smoked. It is advantageous that the smoke can be burned when passing through, and the firing can be performed more reliably.

(Effect of the invention) As described above, according to the present invention, since the heat source for smoke burning having the heat radiation surface on the lower surface is provided along the upper portion of the substantially horizontal smoke discharge passage through which the smoke flows relatively slowly, A heat source for smoke burning is installed at the exhaust outlet of the smoke discharge passage where the smoke rises and the flow of smoke is relatively fast in the conventional example, and the heat source is higher than that for burning smoke with the heat from the heat source for smoke burning. It is possible to take a long time to contact the heat with smoke and smoke, and the smoke easily flows in the upper part of the smoke discharge passage, that is, the side where the heat source for smoke burning is installed, and the temperature is high immediately after it leaves the firing chamber. Since the smoke is burned by the heat from the heat source for burning the smoke, it is possible to solve the problems found in the conventional example such that the smoke can be completely burned out, and the inside of the baking chamber is provided from below the inlet of the smoke discharge passage. Radiation from the heat source for smoke burning was made possible by projecting a protruding piece of approximately the same width as the heat source for smoke burning. By preventing the heat from reaching the firing chamber by the protrusions, it is possible to solve the problem that the temperature of the rear part of the firing chamber becomes too high, and by providing a heat source for smoke burning at the inlet of the smoke discharging passage, The effect is that there is no need to lengthen the size of the calciner and the size of the entire calciner does not increase.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention, and FIG. 2 is its II-
II side cutaway side view, FIG. 3 is a partial exploded side view, FIG. 4 and FIG. 5 are cutaway side views of essential portions of other embodiments, and FIG. 6 is a VI-VI line cutaway of FIG. The front view, FIG. 7 and FIG. 8 are sectional side views of still another embodiment. 2 ... Baking chamber, 3 ... Smoke exhaust passage, 3a ... Entrance, 4 ...
… Heat source, 5… Projection piece

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tetsuo Tatematsu 2-26 Fukuzumi-cho, Nakagawa-ku, Aichi Prefecture Nagoya, Japan (72) Inventor Tadanori Takase 2-26 Fukuzumi-cho, Nakagawa-ku, Nagoya City, Aichi Prefecture No. 26 in Linnai Co., Ltd. (72) Inventor Sadao Yoshimura 2-26, Fukuzumi-cho, Nakagawa-ku, Nagoya, Aichi Prefecture (56) References No. 59-34304 (JP, Y1) No. 58 -Microfilm (JP, U) of the details and drawings attached to the application for No. 203080 (No. Sho 60-106004)

Claims (1)

[Claims] 1. An inlet opening at the upper rear end of the baking cabinet,
In a smoke exhaust passage having a substantially horizontal rearward extension and an exhaust outlet provided in the upper rear portion, a heat radiating surface is provided on the lower surface along the upper part of the inlet in the substantially horizontal smoke exhaust passage. A calciner provided with a heat source for smoke burning, and a protrusion having a width substantially the same as that of the heat source for smoke burning projected into the calcining chamber from below the inlet of the smoke discharge passage.